系统学习magento二次开发，推荐小册：《Magento中文全栈二次开发 》
本小册面向Magento2以上版本，书代码及示例兼容magento2.0-2.4版本。涵盖了magento前端开发，后端开发，magento2主题,magento2重写,magento2 layout,magento2控制器,magento2 block等相关内容,带领您成为magento开发技术专家。
请求处理器池是 Magento 2 中的一个组件，它提供了一种方法来处理多个请求并发地处理。它可以帮助我们优化网站的性能，因为它可以同时处理多个请求，而不是等待一个请求完成后才能处理下一个请求。下面是一些使用请求处理器池的代码示例：
注册请求处理器池：
use Magento\Framework\App\Request\Http;
use Magento\Framework\App\Request\Http\Interceptor as RequestInterceptor;
use Magento\Framework\App\RouterListInterface;
use Magento\Framework\App\RouterList;
use Magento\Framework\App\Router\Base as BaseRouter;
$requestInterceptor = \Magento\Framework\App\ObjectManager::getInstance()->get(RequestInterceptor::class);
$request = $requestInterceptor->getRequest();
if (!$request instanceof Http) {
throw new \LogicException('The request must be an HTTP request.');
}
$routerList = \Magento\Framework\App\ObjectManager::getInstance()->get(RouterListInterface::class);
if (!$routerList instanceof RouterList) {
throw new \LogicException('Unable to retrieve the router list instance.');
}
$routerList->remove(BaseRouter::class);
$routerList->add(Http\Interceptor::class, ['priority' => 1000]);
$objectManager = \Magento\Framework\App\ObjectManager::getInstance();
$objectManager->configure([\Magento\Framework\App\Request\Http::class => ['parameters' => ['requestHandlerPool' => ['instance' => Http\RequestHandlerPool::class]]]]);添加请求处理器到请求处理器池：
use Magento\Framework\App\Request\Http;
use Magento\Framework\App\Request\Http\Interceptor as RequestInterceptor;
use Magento\Framework\App\Request\Http\RequestHandlerPool;
$requestInterceptor = \Magento\Framework\App\ObjectManager::getInstance()->get(RequestInterceptor::class);
$request = $requestInterceptor->getRequest();
if (!$request instanceof Http) {
throw new \LogicException('The request must be an HTTP request.');
}
$handlerPool = \Magento\Framework\App\ObjectManager::getInstance()->get(RequestHandlerPool::class);
// Add a new handler to the pool
$handlerPool->addHandler($request, 'my_custom_handler', MyCustomRequestHandler::class);使用请求处理器池：
use Magento\Framework\App\Request\Http;
use Magento\Framework\App\Request\Http\Interceptor as RequestInterceptor;
use Magento\Framework\App\Request\Http\RequestHandlerPool;
$requestInterceptor = \Magento\Framework\App\ObjectManager::getInstance()->get(RequestInterceptor::class);
$request = $requestInterceptor->getRequest();
if (!$request instanceof Http) {
throw new \LogicException('The request must be an HTTP request.');
}
$handlerPool = \Magento\Framework\App\ObjectManager::getInstance()->get(RequestHandlerPool::class);
// Get the handler for the current request
$handler = $handlerPool->getHandler($request);
// Process the request using the handler
$response = $handler->process($request);
// Send the response back to the client
$response->send();